Diesel Data: Automotive Repair

SRS System




Control System DTCs

SRS DTC Troubleshooting: 92-1x

DTC 92-1x ("x" can be 0 thru 9 or A thru F) : Short to Power in the Front Passenger's Airbag Cutoff Indicator

NOTE:
* Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed Service and Repair.
* Before doing this troubleshooting procedure, review SRS Precautions and Procedures Service and Repair, General Troubleshooting Information Reading and Clearing Diagnostic Trouble Codes, and Battery Terminal Disconnection and Reconnection Procedures.
* Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software Programming and Relearning, and retest.
* If there are other SRS DTCs stored with 92-1x; troubleshoot them first.

1. Problem verification:

Problem verification
-1. Clear the DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

-2. Turn the ignition switch to ON (II), then wait for 10 seconds.

-3. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 92-1x indicated?
-YES- The failure is duplicated. Go to step 2.
-NO- Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures Reading and Clearing Diagnostic Trouble Codes. If another DTC is indicated, troubleshoot the DTC.

2. Shorted wire check (OFF_PTT line to power):

Shorted wire check (OFF_PTT line to power)
-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the negative cable from the battery, then wait at least 3 minutes.

-3. Disconnect the following connectors.





-4. Reconnect the negative cable to the battery.

-5. Turn the ignition switch to ON (II).

-6. Measure the voltage between test points 1 and 2.









Is there less than 0.2 V?
-YES- Faulty front passenger's airbag cutoff indicator or SRS unit; replace the front passenger's airbag cutoff indicator Service and Repair, then clear the DTC, and retest. If the DTC is still present, replace the SRS unit Service and Repair.
-NO- Short to power in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.